Constant pressure systems, ideal where a consistent spray pattern is needed from start to finish. Can spray an even 14 1/2" wide pattern at 1" thick. The perfect solution for the highly efficient hybrid insulation system or air sealing projects where 1" of foam is required. Hy-Flo 700 consists of two sets of chemical tanks partially filled and more heavily pressurized. It is packaged in four cartons, complete with our patented U-Control dispensing gun attached to two 20 foot hoses, 12 flash spray nozzles, 3 multi-purpose mixing nozzles, and nitrile gloves. Hy-Flo 700 will produce 700 square feet of cured foam at a 1" thickness. The Hy-Flo Systems are a Class I foam.